Why is tetraoxosulphate(VI) acid NOT used for making carbon dioxide from calcium carbonate? It is

A. a dehydrating agent
B. a strong acid
C. an oxidizing agent
D. dibasic
E. forms insoluble calcium tetraoxosulphate(Vl)

Correct Answer:

Option E – forms insoluble calcium tetraoxosulphate(Vl)